[9.10] Kernel upgraded, but won't install headers?

[littlebigman]

Hello

I'd like to upgrade a live ISO file before burning a new CD.

So, following the instructions in "How to Customise the Ubuntu Desktop CD", I chrooted to the squashfs and ran "apt-get update/upgrade/dist-upgrade", expecting apt-get to upgrade the chroot kernel... only to find out that apparently, even when being chrooted, this command upgrades the actual kernel. I guess it makes sense, but I was under the - wrong - impression that chroot would build a filesystem totally isolated from the underneath host.

So I rebooted to use this new kernel:

# uname -r
2.6.32-24-generic

Next, since the Nouveau video driver requires the kernel header files, I ran the following:

# apt-get install linux-headers-$(uname -r)
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package linux-headers-2.6.32-24-generic

According to this link, 2.6.32-24 is apparenty only available for Ubuntu 10.04, ie. Lucid.

I don't understand why apt-get upgrades the kernel but won't install its header files. Can an expert shed some light?

Thank you.

[JosePF]

Hello,
Please chroot and report:
ls /boot

Regards

[littlebigman]

Thanks, but when chrooted, there is no /boot since those files are on the CD while squashfs contains the root filesystem that is uncompressed in RAM.

I think I found the cause: The underlying host is running Ubuntu 10.04 while the ISO is based on Ubuntu 9.10. I think I ran "apt-get update/upgrade/dist-upgrade" before chrooting, and the latest kernel that 10.04 offers has a higher version number than what's available for 9.10, which would explain the error I got above.

I guess the solution, is to only run "apt-get update", and manually download vmlinuz/initrd.gl and copy them into the ISO file.

Thank you.